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Date: Fri, 14 Feb 2003 00:36:42 +0100
From: Andries Brouwer <aebr@win.tue.nl>
To: Valdis.Kletnieks@vt.edu
Cc: Bruno Diniz de Paula <diniz@cs.rutgers.edu>, linux-kernel@vger.kernel.org
Subject: Re: How to bypass buffer caches?
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> On Thu, 13 Feb 2003 12:51:19 EST, Bruno Diniz de Paula said:
> 
> > But what if "/dev/hda7" already has an ext2 fs set up. How am I supposed
> > to know which phisical blocks in the disk correspond to each of my files
> > in the ext2 mapping, that is, "/var/somefile" or "/usr/local/otherfile"?
> 
> The quick answer:  Don't do that. ;)

But if you insist, there is the FIBMAP ioctl.
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